Cita APA (7a ed.)

Brieger, N., & Comfort, J. (1993). Developing business contacts. Prentice hall.

Cita Chicago Style (17a ed.)

Brieger, Nick, y Jeremy Comfort. Developing Business Contacts. New York [etc.]: Prentice hall, 1993.

Cita MLA (9a ed.)

Brieger, Nick, y Jeremy Comfort. Developing Business Contacts. Prentice hall, 1993.